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Sugie S, Maeda H. Conversion of rice husks into carbonaceous materials with porous structures via hydrothermal process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:45711-45717. [PMID: 38977551 PMCID: PMC11269380 DOI: 10.1007/s11356-024-34217-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 06/29/2024] [Indexed: 07/10/2024]
Abstract
Carbonaceous materials hydrothermally produced using waste biomass have small specific surface areas (SSA) and poor porosity properties. In this study, we prepare a novel carbonaceous material with excellent porosity properties by suppressing the formation of a secondary char phase (spheres) and promoting biomass hydrolysis by controlling the hydrothermal conditions. Rice husk powders, as the starting material, are hydrothermally treated using acidic solvents of different types and concentrations at 180 °C. The surfaces of the samples hydrothermally prepared using the acidic solvents have no spheres. In the case of 0.1-0.2 mol L-1 hydrochloric acid (HA), the amorphous carbonaceous materials contain numerous mesopores and exhibit a larger SSA (approximately 100 m2 g-1) than those prepared using acetic acid and distilled water. An increase in the hydrothermal temperature reduces the porosity properties of the materials. Finally, the high-porosity amorphous carbonaceous material showed excellent trimethylamine adsorption ability.
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Affiliation(s)
- Sayaka Sugie
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso-Cho, Showa-Ku, Nagoya, 466-8555, Japan
| | - Hirotaka Maeda
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso-Cho, Showa-Ku, Nagoya, 466-8555, Japan.
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Shi Y, Luo G, Fan J, Clark JH, Zhang S. Fundamental properties and phosphorus transformation mechanism of soybean straw during microwave hydrothermal conversion process. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 175:265-275. [PMID: 38232518 DOI: 10.1016/j.wasman.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024]
Abstract
Microwave hydrothermal (MHT) conversion is emerging as a promising technology for the disposal and reutilization of biowastes. This study investigated the fundamental properties and phosphorus transformation mechanism of soybean straw during the MHT conversion process. The oxygen-containing functional groups in soybean straw were stripped, and a trend of dehydration was observed as the temperature increased during the MHT process. Cellulose was identified as the major component of the MHT solid products at high temperature. Glucose and glucuronic acid in the MHT liquid products were gradually converted to formic acid and acetic acid with increasing temperature and holding time. The characteristics of the MHT products directly affected the changes in P speciation and transformation. Most of the P was distributed in liquid products and the impact of holding time was not significant on P distribution at low MHT temperature. With the increase in temperature and holding time, P gradually transferred into the solid products. The proportion of organic phosphorus and soluble inorganic phosphorus in soybean straw was high, and it decreased noticeably after the MHT process. The increase in MHT temperature promoted the conversion of OP and AP into IP and NAIP respectively. P K-edge X-ray absorption near edge structure analysis reveals that Ca5(PO4)3(OH) was the major component of soybean straw and more Ca5(PO4)3(OH) was formed at lower MHT temperature. This study provides fundamental knowledge on the property changes of soybean straw and the transformation of phosphorus during MHT conversion process, which is essential for its disposal and further utilization.
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Affiliation(s)
- Yan Shi
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, P.R. China; Green Chemistry Center of Excellence, Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Gang Luo
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, P.R. China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, P.R. China
| | - Jiajun Fan
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, York, YO10 5DD, UK.
| | - James H Clark
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Shicheng Zhang
- Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes, Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, P.R. China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, P.R. China.
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Yi CQ, Bojeng MNBHBH, Kamis SKBH, Mubarak NM, Karri RR, Azri H. Production of hydrogen using plastic waste via Aspen Hysys simulation. Sci Rep 2024; 14:4934. [PMID: 38418697 PMCID: PMC10901799 DOI: 10.1038/s41598-024-55079-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 02/19/2024] [Indexed: 03/02/2024] Open
Abstract
Plastic waste is being manufactured for the production of hydrogen. The amount of plastic waste collected annually is 189,953 tonnes from adjacent nations like Indonesia and Malaysia. Polyethylene (PE), Polypropylene (PP), Polyethylene Terephthalate (PET), Polyvinyl chloride (PVC), and Polystyrene (PS) are the five most prevalent forms of plastic found in most waste. Pyrolysis, water gas shift and steam reforming reaction, and pressure swing adsorption are the three main phases utilized and studied. In this research, authors examines the energy consumption on every stage. The plastic waste can be utilized to manufacture many hydrocarbons using the pyrolysis reaction. For this process, fast pyrolysis is being used at a temperature of 500 °C. A neutralization process is also needed due to the presence of Hydrochloric acid from the pyrolysis reaction, with the addition of sodium hydroxide. This is being carried to prevent any damage to the reactor during the process. Secondly, the steam reforming process continues after the water gas shift reaction has produced steam and carbon monoxide, followed by carbon dioxide and hydrogen formation. Lastly, pressure swing adsorption is designed to extract H2S and CO2 from the water gas shift and steam reforming reaction for greater purity of hydrogen. From the simulation study, it is observed that using various types of plastic waste procured (total input of 20,000 kg per hour of plastics) from, Brunei Darussalam, Malaysia and Indonesia, can produce about 340,000 tons of Hydrogen per year. Additionally, the annual profit of the Hydrogen production is estimated to be between $ 271,158,100 and $ 358,480,200. As per the economic analysis, it can be said that its a good to start hydrogen production plant in these regions.
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Affiliation(s)
- Chua Qi Yi
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei
| | | | - Siti Khadijah Binti Haji Kamis
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei.
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Jalandhar, Punjab, India.
| | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei
- INTI International University, 71800, Nilai, Negeri Sembilan, Malaysia
| | - Hazwan Azri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei
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Bai T, Zhao J, Tian L, Zhang L, Jin Z. The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies. MATERIALS (BASEL, SWITZERLAND) 2024; 17:311. [PMID: 38255479 PMCID: PMC11154531 DOI: 10.3390/ma17020311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024]
Abstract
Adopting banana peel as a raw material, the adsorption properties of banana peel hydrothermal carbon modified with a KOH solution for lead ions in aqueous solution were studied. The surface structure and functional groups of the modified hydrothermal carbon were analyzed by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, the Brunner-Emmet-Teller (BET) method, element analysis, and Raman spectroscopy. The results showed that an adsorption capacity of 42.92 mg/g and a removal rate of 86.84% were achieved when the banana peel hydrothermal carbon was modified with a KOH solution of 0.5 mol/L, with a pH of 6 and a solid-liquid ratio of 1 g/L. The equilibrium adsorption time for lead ions in solution being adsorbed using KOH-modified hydrothermal carbon was 240 min, the adsorption process satisfied the quasi-second-order kinetic model and the Redlich-Peterson isotherm equation, and the equilibrium removal efficiency was 88.62%. The adsorption of lead ions using KOH-modified hydrothermal carbon is mainly chemical-physical adsorption.
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Li S, Ji B, Zhang W. A review on the thermochemical treatments of biomass: Implications for hydrochar production and rare earth element recovery from hyperaccumulators. CHEMOSPHERE 2023; 342:140140. [PMID: 37709067 DOI: 10.1016/j.chemosphere.2023.140140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023]
Abstract
Phytomining is a promising method that employs hyperaccumulators to concentrate metals from various substrates. Many studies on phytomining have been reported in the literature, while how to recover metals from hyperaccumulators has not been well resolved, which is critical for developing a complete phytomining-based metal recovery process. The most straightforward approach is to combust hyperaccumulators and recover metals from the combustion residue. However, the combustion process results in significant waste and carbon emissions. In contrast to combustion, thermochemical treatments can convert the biomass of hyperaccumulators to valuable products, such as biochar, hydrochar, biocrudes, and biogas. Therefore, it is more sustainable to develop a process that combines thermochemical treatments for metal recovery from hyperaccumulators. To achieve this objective, a systematic and comprehensive understanding of product characteristics and metal fate during thermochemical processing is required. In this article, three emerging thermochemical technologies, i.e., microwave-assisted pyrolysis, hydrothermal processing, and microwave-assisted hydrothermal treatment, are systematically reviewed in terms of conversion mechanisms, merits, demerits, product characteristics, and metal fate. Significant findings reported in the literature on the effects of operating parameters on product characteristics and metal fate during thermochemical treatment of waste biomass, especially those from hyperaccumulators, were summarized. Due to limited studies on thermochemical treatments of rare earth element hyperaccumulators, this review is expanded to include hyperaccumulators of any metal species. Based on comparisons among the three emerging thermochemical treatment technologies, microwave-assisted hydrothermal pyrolysis is identified as the most promising approach that favors carbon product obtainment and REE recovery from hyperaccumulators.
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Affiliation(s)
- Shiyu Li
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Bin Ji
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Wencai Zhang
- Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
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Abe H, Nakayasu Y, Haga K, Watanabe M. Progress on Separation and Hydrothermal Carbonization of Rice Husk Toward Environmental Applications. GLOBAL CHALLENGES (HOBOKEN, NJ) 2023; 7:2300112. [PMID: 37635706 PMCID: PMC10448154 DOI: 10.1002/gch2.202300112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Indexed: 08/29/2023]
Abstract
Owing to the increasing global demand for carbon resources, pressure on finite materials, including petroleum and inorganic resources, is expected to increase in the future. Efficient utilization of waste resources has become crucial for sustainable resource acquisition for creating the next generation of industries. Rice husks, which are abundant worldwide as agricultural waste, are a rich carbon source with a high silica content and have the potential to be an effective raw material for energy-related and environmental purification materials such as battery, catalyst, and adsorbent. Converting these into valuable resources often requires separation and carbonization; however, these processes incur significant energy losses, which may offset the benefits of using biomass resources in the process steps. This review summarizes and discusses the high value of RHs, which are abundant as agricultural waste. Technologies for separating and converting RHs into valuable resources by hydrothermal carbonization are summarized based on the energy efficiency of the process.
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Affiliation(s)
- Hiroya Abe
- Frontier Research Institute for Interdisciplinary Sciences (FRIS)Tohoku University6‐3 Aoba, Aramaki, Aoba‐kuSendai980–8578Japan
- Graduate School of EngineeringTohoku University6‐6‐11 Aoba, Aramaki, Aoba‐kuSendai980‐8579Japan
| | - Yuta Nakayasu
- Frontier Research Institute for Interdisciplinary Sciences (FRIS)Tohoku University6‐3 Aoba, Aramaki, Aoba‐kuSendai980–8578Japan
- Graduate School of EngineeringTohoku University6‐6‐11 Aoba, Aramaki, Aoba‐kuSendai980‐8579Japan
| | - Kazutoshi Haga
- Graduate School of International Resource SciencesAkita University1‐1, Tegata‐GakuenmachiAkita010‐8502Japan
| | - Masaru Watanabe
- Graduate School of EngineeringTohoku University6‐6‐11 Aoba, Aramaki, Aoba‐kuSendai980‐8579Japan
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Mihret YC, Delele MA, Hailemesikel ST. Design, development, and testing of rice-husk fueled mixed-flow rice dryer for small-scale rice producer farmers. Heliyon 2023; 9:e18077. [PMID: 37496894 PMCID: PMC10366435 DOI: 10.1016/j.heliyon.2023.e18077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 06/29/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023] Open
Abstract
In underdeveloped nations, rice is frequently harvested at a relatively high moisture content and then dried under the open sun to a storage moisture content. However, direct UV exposure, rain, dust, premature drying, contamination, and open sun drying are all associated with problems like poor grains, discolorations, and cracking. Commercial mechanical dryer utilization is not practical in remote regions due to the absence of electrical service, high startup costs, and ongoing operating expenses. In this work, a pilot mixed-flow rice drier that ran on rice husk energy and solar energy to power the driving fan was designed, produced, and tested. The major parts of the dryer assembly that were conceived and created were the combustion chamber, heat exchanger, and mixed-flow dryer. The results of the trial revealed that the combustion chamber's average temperature was 347.3 °C, the drying air at the heat exchanger output, where the drying chamber was attached, was 63.3 °C, and the combustion chamber and heat exchanger's respective efficiencies were 52.4% and 14.9%. The mixed-flow dryer powered by rice has a significantly lower operating cost than a comparable dryer powered by electricity, petrol, and diesel. The study makes it evident that such a reasonably priced and effective rice dryer might significantly help small-scale rice producers to extend the storage duration and maintain the quality of their product.
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Affiliation(s)
- Yabebal Chekole Mihret
- Faculty of Mechanical and Industrial Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Mulugeta Admasu Delele
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Solomon Tekeste Hailemesikel
- Faculty of Mechanical and Industrial Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia
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Johnson VE, Liao Q, Jallawide BW, Anaman R, Amanze C, Huang P, Cao W, Ding C, Shi Y. Simultaneous removal of As(V) and Pb(II) using highly-efficient modified dehydrated biochar made from banana peel via hydrothermal synthesis. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Nandi R, Jha MK, Guchhait SK, Sutradhar D, Yadav S. Impact of KOH Activation on Rice Husk Derived Porous Activated Carbon for Carbon Capture at Flue Gas alike Temperatures with High CO 2/N 2 Selectivity. ACS OMEGA 2023; 8:4802-4812. [PMID: 36777600 PMCID: PMC9910064 DOI: 10.1021/acsomega.2c06955] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
Metal-free porous activated carbon is an effective alternative to capture CO2 due to its high surface area and textural advantages. In this regard, the present research work explores a suitable method for producing activated porous carbon with a high specific surface area through a two-step reaction involving rice husk and KOH at 600 °C for 1 h to capture CO2. By varying the ratio of rice husk biomass to KOH, the texture and specific surface area of the activated porous carbon has been altered. A high surface area of ∼755 m2/g and a micropore volume of 0.243 cm3/g have been observed in the porous carbon produced with a KOH/biomass weight ratio of 3 (PAC2). Nitrogen contents in PAC1 and PAC2 were approximately 2.27 and 2.71 atom %, respectively. When compared with other materials, PAC2 has the highest CO2 adsorption capability, reaching up to 3.13 mmol/g at 0 °C and 1.55 mmol/g at 50 °C. The isosteric heat of adsorption confirms the presence of both physisorption and chemisorption. The materials turn out to be highly CO2/N2 selective, with the highest selectivity of 131, proving that the samples are potential materials for capturing CO2 from flue gases. These findings unequivocally show that porous activated carbon can be used to make CO2 adsorption efficient, inexpensive, and, more importantly, extremely effective.
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Affiliation(s)
- Rajib Nandi
- Dr.
B. R. Ambedkar National Institute of Technology, Jalandhar144011, India
- Sardar
Swaran Singh National Institute of Bio-Energy, Kapurthala144601, India
| | | | | | - Debanjan Sutradhar
- Dr.
B. R. Ambedkar National Institute of Technology, Jalandhar144011, India
- Sardar
Swaran Singh National Institute of Bio-Energy, Kapurthala144601, India
| | - Shashikant Yadav
- Dr.
B. R. Ambedkar National Institute of Technology, Jalandhar144011, India
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Liu Y, Wang E, Kan Z, Liu B, Bai L, Wang Q, Zhang X. Co-hydrothermal carbonization of oil shale and rice husk: Combustion, pyrolysis characteristics, and synergistic effect. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2023; 41:442-456. [PMID: 36127886 DOI: 10.1177/0734242x221122539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Countries all over the world are looking for fuel to replace fossil energy due to environmental concerns and a scarcity of fossil fuels. Oil shale (OS) and rice husk (RH) are both viable fuels, although they both have issues like high ash content and poor calorific value. OS and RH were used as feedstock for high-quality fuel in this study, which uses a hydrothermal technique to provide a novel way to utilize OS and rice. At different hydrothermal temperatures (150, 200 and 250 °C), including combustion and pyrolysis processes, the thermogravimetric analyzer (TGA) was used to analyse thermal transformation characteristics of co-hydrothermal carbonization (co-HTC) of OS and RH, as well as the synergistic effects. Results showed that the co-HTC pretreatment had a significant effect on the thermal transformation behaviour of OS and RH. On the one hand, the co-HTC has higher volatile content than its calculated value. On the other hand, a synergistic effect was found in combustion processes, and this effect was the most obvious when the hydrothermal temperature was around 200 °C, and the characteristic peak of functional groups vibration was strong. Therefore, the co-HTC was considered suitable for combustion. The combination of co-HTC modification with subsequent thermochemical processes has positive implications for the energy production and utilization of organic waste.
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Affiliation(s)
- Yaoxin Liu
- School of Energy and Power, Shenyang Institute of Engineering, Shenyang, China
| | - Enyu Wang
- Graduate Faculty, Shenyang Institute of Engineering, Shenyang, China
| | - Ze Kan
- Graduate Faculty, Shenyang Institute of Engineering, Shenyang, China
| | - Baotong Liu
- International Business School, Shenyang Normal University, Shenyang, Liaoning, China
| | - Ling Bai
- Journal Editorial Department, Shenyang Institute of Engineering, Shenyang, China
| | - Qiang Wang
- School of Energy and Power, Shenyang Institute of Engineering, Shenyang, China
| | - Xiaohui Zhang
- School of Energy and Power, Shenyang Institute of Engineering, Shenyang, China
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Zhang X, Gao Z, Fan X, Tan L, Jiang Y, Zheng W, Han FX, Liang Y. A comparative study on adsorption of cadmium and lead by hydrochars and biochars derived from rice husk and Zizania latifolia straw. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:63768-63781. [PMID: 35461422 DOI: 10.1007/s11356-022-20263-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
In this study, hydrochars and biochars were prepared from rice husk (RH) and Zizania latifolia straw (ZL) at various pyrolysis temperatures as absorbents, for removing toxic ions from single and competitive solutions of cadmium (Cd) and/or lead (Pb). The adsorption efficiencies of Cd and Pb in both hydrochars and biochars were lower in the competitive solution than in the single solution, and the absorbents had a stronger affinity for Pb than for Cd. Compared to hydrochars, biochars showed more favorable Cd and Pb adsorption capacities in the single or competitive solutions, and the ZL biochars had the maximum adsorption capacity among them. The SEM and FTIR analyses suggest that the predominant adsorption mechanisms of biochars and hydrochars are surfaces monolayer adsorption, precipitation, complexation, and coordination with π electrons. However, hydrochars derived from ZL exhibited an optimal additional Pb adsorption capacity in the high-level (5 ~ 10 mg L-1 Cd and Pb) competitive solution. This extra Pb adsorption of hydrochars was likely attributed to the Si-O-Si groups and more bumpy structure. Zizania latifolia straw biochar had a huge potential removal of Cd or/and Pb, and applying hydrochars as absorbents was beneficial to the removal of Cd and Pb in polluted solutions.
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Affiliation(s)
- Xinyuan Zhang
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zixiang Gao
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoping Fan
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Li Tan
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yishun Jiang
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Wanning Zheng
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Fengxiang X Han
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, 39217, USA
| | - Yongchao Liang
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Schneider H, Schmitz T, Flores CG, Tessaro IC, Marcilio NR. Influence of Temperature and Residence Time in the Hydrothermal Carbonization of Rice Husk and Exhausted Black Wattle Bark. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2021.0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Helena Schneider
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Thaís Schmitz
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Camila Gomes Flores
- Institut de Chimie et Procédés pour l'Énergie, l'Environnement et la Santé, University of Strasbourg, Strasbourg, France
| | - Isabel Cristina Tessaro
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Nilson Romeu Marcilio
- Department of Chemical Engineering, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Gaur VK, Gautam K, Sharma P, Gupta S, Pandey A, You S, Varjani S. Carbon-based catalyst for environmental bioremediation and sustainability: Updates and perspectives on techno-economics and life cycle assessment. ENVIRONMENTAL RESEARCH 2022; 209:112793. [PMID: 35090873 DOI: 10.1016/j.envres.2022.112793] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/15/2022] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Global rise in the generation of waste has caused an enormous environmental concern and waste management problem. The untreated carbon rich waste serves as a breeding ground for pathogens and thus strategies for production of carbon rich biochar from waste by employing different thermochemical routes namely hydrothermal carbonization, hydrothermal liquefaction and pyrolysis has been of interest by researchers globally. Biochar has been globally produced due to its diverse applications from environmental bioremediation to energy storage. Also, several factors affect the production of biochar including feedstock/biomass type, moisture content, heating rate, and temperature. Recently the application of biochar has increased tremendously owing to the cost effectiveness and eco-friendly nature. Thus this communication summarized and highlights the preferred feedstock for optimized biochar yield along with the factor influencing the production. This review provides a close view on biochar activation approaches and synthesis techniques. The application of biochar in environmental remediation, composting, as a catalyst, and in energy storage has been reviewed. These informative findings were supported with an overview of lifecycle and techno-economical assessments in the production of these carbon based catalysts. Integrated closed loop approaches towards biochar generation with lesser/zero landfill waste for safeguarding the environment has also been discussed. Lastly the research gaps were identified and the future perspectives have been elucidated.
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Affiliation(s)
- Vivek Kumar Gaur
- School of Energy and Chemical Engineering, UNIST, Ulsan, 44919, Republic of Korea; Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India
| | - Krishna Gautam
- Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India
| | - Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | | | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, 226 001, Uttar Pradesh, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India; India Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, Uttarakhand, India
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat, 382 010, India.
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Shi Y, Chen Z, Zhu K, Fan J, Clark JH, Luo G, Zhang S. Speciation evolution and transformation mechanism of P during microwave hydrothermal process of sewage sludge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152801. [PMID: 34986420 DOI: 10.1016/j.scitotenv.2021.152801] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Due to the global shortage of phosphate ore, sewage sludge is an important resource for P recovery. This study aims to investigate how P was migrated and transformed during the microwave hydrothermal (MHT) process of sewage sludge. The effects of MHT and hydrothermal (HT) conversion were compared. The results reveals that there were no significant differences on the P distribution and speciation changes between the HT and MHT products, especially under high hydrothermal temperature. Ortho-P/Pyro-P was the dominant P form in the hydrothermal solid products, and high temperature promoted the transformation of C-O-P to Ortho-P/Pyro-P. The analysis of X-ray absorption near edge structure (XANES) shows that Ca5(PO4)3OH was formed after the hydrothermal processes. The relative abundance of Ca-P decreased first and then increased with increasing hydrothermal temperature. Moderate MHT temperature (170 °C) and holding time (30-60 min) promoted the transformation of P to the liquid products. Generally, the effect of MHT temperature was more significant than that of heating type and holding time on the variations of P distribution and speciations.
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Affiliation(s)
- Yan Shi
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, PR China; Green Chemistry Center of Excellence, Department of Chemistry, University of York, York YO10 5DD, UK
| | - Zheng Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, PR China
| | - Keliang Zhu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, PR China
| | - Jiajun Fan
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, York YO10 5DD, UK
| | - James H Clark
- Green Chemistry Center of Excellence, Department of Chemistry, University of York, York YO10 5DD, UK
| | - Gang Luo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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15
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Visible-Light-Active Zn–Fe Layered Double Hydroxide (LDH) for the Photocatalytic Conversion of Rice Husk Extract to Value-Added Products. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052313] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
One of the major causes of excess CO2 in the atmosphere is the direct burning of biomass waste, which can be obviated by the photocatalytic biomass conversion to useful/valuable chemicals/fuels, a sustainable and renewable approach. The present research work is focused on the development of a novel Zn–Fe LDH by a simple co-precipitation method and its utilization for the photocatalytic conversion of a rice husk extract (extracted from rice husk by means of pyrolysis) to value-added products. The synthesized, pure Zn–Fe LDH was characterized by various analytical techniques such as XRD, SEM, FTIR, and UV–Visible DRS spectroscopy. The rice husk extract was converted in a photocatalytic reactor under irradiation with 75 W white light, and the valued-added chemicals were analyzed by gas chromatography–mass spectrometry (GC–MS). It was found that the compounds in the rice husk extract before the photocatalytic reaction were mainly carboxylic acids, phenols, alcohols, alkanes (in a small amount), aldehydes, ketones, and amines. After the photocatalytic reaction, all the carboxylic acids and phenols were completely converted into alkanes by complex reactions. Hence, photocatalytic biomass conversion of a rice husk extract was successfully carried out in the present experimental work, opening new avenues for the development of related research domains, with a great potential for obtaining an alternate fuel and overcoming environmental pollution.
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16
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Hedayati Marzbali M, Saberi A, Halder P, Paz-Ferreiro J, Dasappa S, Shah K. Mechanistic and kinetic study of the hydrothermal treatment of paunch waste. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Hydrothermal carbonization of oil palm trunk via taguchi method. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0753-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Huang Z, Shi L, Muhammad Y, Li L. Effect of ionic liquid assisted hydrothermal carbonization on the properties and gasification reactivity of hydrochar derived from eucalyptus. J Colloid Interface Sci 2021; 586:423-432. [DOI: 10.1016/j.jcis.2020.10.106] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 02/06/2023]
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19
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Liu X, Cheng Y, Liu Y, Chen D, Chen Y, Wang Y. Hydrochar did not reduce rice paddy NH 3 volatilization compared to pyrochar in a soil column experiment. Sci Rep 2020; 10:19115. [PMID: 33154540 PMCID: PMC7644716 DOI: 10.1038/s41598-020-76213-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 10/23/2020] [Indexed: 12/15/2022] Open
Abstract
Pyrochar (PC) is always with high pH value, and improper application might increase rice paddy ammonia volatilization (PAV), which is the main nitrogen loss through air during rice production. Differently, hydrochar (HC) takes the advantages of high productive rate and always with lower pH value compared with PC. However, effect pattern and mechanism of HC on PAV are still unclear. In the present study, soil column experiments were conducted to investigate the effect of PC and HC application on PAV. In total, treatments with four types of biochar (WPC, SPC, WHC and SHC, i.e., PC and HC prepared with wheat straw and sawdust, respectively) and two application rates (0.5% and 1.5%, w/w) were set up and non-biochar application was used as control. Results showed that, application of HC with low pH value could not reduce PAV compared with PC. Total PAV increased significantly as the increase of HC application rate (especially for WHC). The increment of PAV under high rate HC application might be due to the strong buffer capacity of soil, the aging of biochar, the high nitrogen from HC. The results indicated that HC should be pretreatment before utilization in agricultural environment considering PAV reduction.
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Affiliation(s)
- Xiaoyu Liu
- Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, China.,Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Yueqin Cheng
- Nanjing Station of Quality Protection in Cultivated Land, Nanjing, 210036, China
| | - Yang Liu
- Institute of Agricultural Information, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
| | - Danyan Chen
- College of Horticulture, Jinling Institute of Technology, Nanjing, 211169, China
| | - Yin Chen
- Jiangsu Vocational College of Agriculture and Forestry, Jurong, 212400, China
| | - Yueman Wang
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
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20
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Hossain N, Nizamuddin S, Griffin G, Selvakannan P, Mubarak NM, Mahlia TMI. Synthesis and characterization of rice husk biochar via hydrothermal carbonization for wastewater treatment and biofuel production. Sci Rep 2020; 10:18851. [PMID: 33139793 PMCID: PMC7606520 DOI: 10.1038/s41598-020-75936-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/22/2020] [Indexed: 11/25/2022] Open
Abstract
The recent implication of circular economy in Australia spurred the demand for waste material utilization for value-added product generations on a commercial scale. Therefore, this experimental study emphasized on agricultural waste biomass, rice husk (RH) as potential feedstock to produce valuable products. Rice husk biochar (RB) was obtained at temperature: 180 °C, pressure: 70 bar, reaction time: 20 min with water via hydrothermal carbonization (HTC), and the obtained biochar yield was 57.9%. Enhancement of zeta potential value from − 30.1 to − 10.6 mV in RB presented the higher suspension stability, and improvement of surface area and porosity in RB demonstrated the wastewater adsorption capacity. Along with that, an increase of crystallinity in RB, 60.5%, also indicates the enhancement of the catalytic performance of the material significantly more favorable to improve the adsorption efficiency of transitional compounds. In contrast, an increase of the atomic O/C ratio in RB, 0.51 delineated high breakdown of the cellulosic component, which is favorable for biofuel purpose. 13.98% SiO2 reduction in RB confirmed ash content minimization and better quality of fuel properties. Therefore, the rice husk biochar through HTC can be considered a suitable material for further application to treat wastewater and generate bioenergy.
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Affiliation(s)
- Nazia Hossain
- School of Engineering, RMIT University, Melbourne, VIC, 3001, Australia.
| | - Sabzoi Nizamuddin
- Civil and Infrastructure Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3001, Australia
| | - Gregory Griffin
- School of Engineering, RMIT University, Melbourne, VIC, 3001, Australia
| | | | - Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Miri, Sarawak, Malaysia.
| | - Teuku Meurah Indra Mahlia
- School of Information, Systems and Modelling, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW, 2007, Australia
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21
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Varala S, Ravisankar V, Al-Ali M, Pownceby MI, Parthasarathy R, Bhargava SK. Process optimization using response surface methodology for the removal of thorium from aqueous solutions using rice-husk. CHEMOSPHERE 2019; 237:124488. [PMID: 31401427 DOI: 10.1016/j.chemosphere.2019.124488] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/25/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
The adsorptive capability of rice-husk for the sorption of thorium ions from aqueous solutions in batch mode was studied. The key process variables (initial metal ion concentration, initial solution pH and S/L (solid-to-liquid ratio) were optimized for achieving maximum bioremoval efficiency (B%) by employing the Box-Behnken design (33) in response surface methodology (RSM). A quadratic model developed by fitting the experimental data predicted 93% of the responses and estimated the local maximum of B% as >99% for an initial ThIV concentration of 150 g/L, S/L ratio of 5, and an initial pH of 4, and the reported biosorption capacity (qe) is 15.95 mg/g for the same conditions. Freundlich isotherm (R2 = 0.9841) and pseudo-first-order (R2 = 0.9416) kinetic models had the best concurrence with the experimental data in the thorium concentration range used implying the sorption mechanism involves surface biosorption and intraparticle diffusion.
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Affiliation(s)
- Sayanasri Varala
- Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia; Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia; Department of Chemical Engineering, M V J College of Engineering, Near ITPB Whitefield, Kadugodi, Bengaluru, Karnataka, 560067. India
| | - Vivek Ravisankar
- Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia
| | - Maha Al-Ali
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia
| | | | - Rajarathinam Parthasarathy
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Victoria, 3001, Australia
| | - Suresh K Bhargava
- Center for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Victoria, 3001, Australia.
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22
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Fei YH, Zhao D, Liu Y, Zhang W, Tang YY, Huang X, Wu Q, Wang YX, Xiao T, Liu C. Feasibility of sewage sludge derived hydrochars for agricultural application: Nutrients (N, P, K) and potentially toxic elements (Zn, Cu, Pb, Ni, Cd). CHEMOSPHERE 2019; 236:124841. [PMID: 31545182 DOI: 10.1016/j.chemosphere.2019.124841] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/04/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
Hydrochars derived from municipal sewage sludge was analyzed for its feasibility for value-added recycling. Results of carbon content and elemental composition suggested that the hydrochars might not be comparable with pyrochars regarding to the carbon sequestration, long-term stability and fuel quality. Application as soil amendment would be a better approach for hydrochar utilization. To examine the potential benefits and risks of that, the total and available content of nutrients (i.e. N, P, and K) were measured, and the potentially toxic elements (PTEs, i.e. Zn, Cu, Pb, Ni and Cd) were analyzed for the total content, speciation, and leaching potential. Compared with pyrochars derived from the same feedstock, hydrochars had lower pH and higher cation exchange capacity. The available content of N (1.58-6.87 g/kg), P (0.270-0.901 g/kg), and K (0-0.873 g/kg) in the chars was less than the feedstock sludge (3.33 g/kg N, 3.02 g/kg P, 2.07 g/kg K), but still far higher than that of the agricultural soil (i.e. 0.014-0.488 g/kg N, 0.02 g/kg P, <0.1-0.272 g/kg). Remarkably, hydrochars showed better nutritional balance than pyrochars for its higher available K content. Risk of potentially toxic elements contamination by the sludge was efficiently reduced in either hydrochars or pyrochars, except the high leaching potential of Zn in pyrochars. Overall, in addition to the advantages of the hydrothermal carbonization process as energy saving and value-added liquid by-products, the hydrochars derived from sludge, with sufficient and balanced nutrients and limited PTEs pollution risk, can be a feasible and value-added material as soil amendment.
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Affiliation(s)
- Ying-Heng Fei
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China; Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Guangzhou, 511458, China
| | - Dan Zhao
- Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Guangzhou, 511458, China; Shenzhen Institutes of Advanced Technology, Shenzhen, 518055, China
| | - Ye Liu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Weihua Zhang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yuan-Yuan Tang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xuexia Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Qihang Wu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, 510006, China
| | - Yue-Xing Wang
- Laboratory of Municipal Wastewater Treatment and Reutilization Engineering, Shenzhen, 518056, China
| | - Tangfu Xiao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Chengshuai Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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23
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Verma L, Siddique MA, Singh J, Bharagava RN. As(III) and As(V) removal by using iron impregnated biosorbents derived from waste biomass of Citrus limmeta (peel and pulp) from the aqueous solution and ground water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 250:109452. [PMID: 31472374 DOI: 10.1016/j.jenvman.2019.109452] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 07/16/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
Now a day's biosorbents with magnetic properties have been applied for water and wastewater treatment process, because of its magnetic nature it can be easily separated and can be reused more than one time. In the present study, two magnetic biosorbents were synthesized from waste biomass of Citrus limetta (peel and pulp) at 500 °C temperature represented as PAC-500 and PPAC-500. These biosorbents were effectively used for the removal of As(III) and As(V) from an aqueous solution and groundwater samples. The prepared biosorbents were characterized by using Brunauer Emmett Teller (BET), Zeta potential, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Disperssive X-ray (EDS), X-ray Diffraction (XRD) and Particle Size Analyzer (PSA). Isotherms, kinetics and thermodynamics were also applied to the obtained experimental data. The regeneration study revealed that the biosorbent can be recycled up to four cycles. The adsorbent capacity of PAC-500 and PPAC-500 for the sorption of As(III) was 714.28 μg/g and 526.31 μg/g, respectively, whereas the qmax value for As(V) sorption was 2000 μg/g for both the biosorbents (PAC-500 and PPAC-500). The effect of competitive ions was also studied that shows that the presence of H2PO4- and CO32 have negative effects on the sorption of As(III) and As(V). Arsenic is very toxic and it is a more important subject for consideration, therefore it is necessary to develop a low cost material that is very efficient in removing As from ground water contaminated with As water.
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Affiliation(s)
- Lata Verma
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University (A Central University), 226025, Lucknow, India
| | - Mohd Adil Siddique
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University (A Central University), 226025, Lucknow, India
| | - Jiwan Singh
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University (A Central University), 226025, Lucknow, India.
| | - Ram Naresh Bharagava
- Laboratory for Bioremediation and Metagenomics Research, Department of Microbiology, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow 226025, India
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24
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Effect of Pyrochar and Hydrochar on Water Evaporation in Clayey Soil under Greenhouse Cultivation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16142580. [PMID: 31330992 PMCID: PMC6678632 DOI: 10.3390/ijerph16142580] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 01/26/2023]
Abstract
Greenhouse cultivation consumes large volumes of freshwater, and excessive irrigation induces environmental problems, such as nutrient leaching and secondary salinization. Pyrochar (biochar from high-temperature pyrolysis) is an effective soil amendment, and researches have shown that pyrochar application could maintain soil nutrient and enhance carbon sequestration. In addition to pyrochar from pyrolysis, hydrochar from hydrothermic carbonization is considered as a new type of biochar and has the advantages of low energy consumption and a high productive rate. However, the effect of these two biochars on water evaporation in clayey soils under a greenhouse system has seldom been studied. The relationship between water evaporation and biochar properties is still unknown. Thus, in the present study, water evaporation under pyrochar and hydrochar application were recorded. Results showed that both pyrochar and hydrochar application could inhibit water evaporation in clayey soil under greenhouse cultivation. Pyrochar showed a better inhibition effect compared with hydrochar. Correlation analysis indicated that the water evaporation rate was significantly positively correlated with bulk density of biochar (p < 0.05). Overall, application of pyrochar or hydrochar could both reduce soil bulk density and inhibit soil evaporation, and be available for greenhouse cultivation. However, the inhibition effect depends on the properties of the biochar.
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25
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Chu H, Lin X, Li M, Liang L, Zhou J, Shang R, Luo X. Rapid synthesis of carbon materials by microwave-assisted hydrothermal method at low temperature and its adsorption properties for uranium (VI). J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06613-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Nizamuddin S, Jadhav A, Qureshi SS, Baloch HA, Siddiqui MTH, Mubarak NM, Griffin G, Madapusi S, Tanksale A, Ahamed MI. Synthesis and characterization of polylactide/rice husk hydrochar composite. Sci Rep 2019; 9:5445. [PMID: 30931991 PMCID: PMC6443802 DOI: 10.1038/s41598-019-41960-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/21/2019] [Indexed: 11/08/2022] Open
Abstract
Polymer composites are fabricated by incorporating fillers into a polymer matrix. The intent for addition of fillers is to improve the physical, mechanical, chemical and rheological properties of the composite. This study reports on a unique polymer composite using hydrochar, synthesised by microwave-assisted hydrothermal carbonization of rice husk, as filler in polylactide matrix. The polylactide/hydrochar composites were fabricated by incorporating hydrochar in polylactide at 5%, 10%, 15% and 20 wt% by melt processing in a Haake rheomix at 170 °C. Both the neat polylactide and polylactide/hydrochar composite were characterized for mechanical, structural, thermal and rheological properties. The tensile modulus of polylactide/hydrochar composites was improved from 2.63 GPa (neat polylactide) to 3.16 GPa, 3.33 GPa, 3.54 GPa, and 4.24 GPa after blending with hydrochar at 5%, 10%, 15%, and 20%, respectively. Further, the incorporation of hydrochar had little effect on storage modulus (G') and loss modulus (G″). The findings of this study reported that addition of hydrochar improves some characteristics of polylactide composites suggesting the potential of hydrochar as filler for polymer/hydrochar composites.
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Affiliation(s)
| | - Ankit Jadhav
- Department of Mechanical Engineering, Ahmedabad Institute of Technology, Ahmedabad, Gujrat, 380060, India
| | - Sundus Saeed Qureshi
- Institute of Environmental Engineering and Management, Mehran University of Engineering and Technology, Jamshoro, 76090, Sindh, Pakistan
| | | | - M T H Siddiqui
- School of Engineering, RMIT University, Melbourne, 3000, Australia
| | - N M Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Sarawak, Malaysia.
| | - Gregory Griffin
- School of Engineering, RMIT University, Melbourne, 3000, Australia
| | | | - Akshat Tanksale
- Department of Chemical Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Mohd Imran Ahamed
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh, 202002, India
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27
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Sayğılı H. Hydrothermal synthesis of magnetic nanocomposite from biowaste matrix by a green and one-step route: Characterization and pollutant removal ability. BIORESOURCE TECHNOLOGY 2019; 278:242-247. [PMID: 30708326 DOI: 10.1016/j.biortech.2019.01.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
This study aimed to produce an industrial waste-based novel magnetic nanocomposite (Fe@GPHC) by a facile and one-step hydrothermal carbonization (HTC) method. In order to characterize of Fe@GPHC, X-ray fluorescence spectroscopy (XRF), Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET), Vibrating-sample magnetometer (VSM), and elemental (ultimate) analyses were applied. Characterization results showed that during the HTC process, the Fe nanoparticles (FeNPs) were successfully incorporated on biowaste matrix. In addition, the Fe@GPHC was used to test its adsorptive property. For this, methylene blue (MB) and methyl orange (MO) were selected as a simulated pollutant. A batch method was used to perform the adsorption experiments. The maximum adsorption capacity of Fe@GPHC was 11 mg g-1 and 8.9 mg g-1 for MB and MO, respectively. This study provides a feasible and simple approach to design and synthesis of high-performance functional magnetic material in a cost-effective way.
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Affiliation(s)
- Hasan Sayğılı
- Department of Petroleum and Natural Gas Engineering, Faculty of Engineering and Architecture, Batman University, 72100 Batman, Turkey.
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28
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Nizamuddin S, Qureshi SS, Baloch HA, Siddiqui MTH, Takkalkar P, Mubarak NM, Dumbre DK, Griffin GJ, Madapusi S, Tanksale A. Microwave Hydrothermal Carbonization of Rice Straw: Optimization of Process Parameters and Upgrading of Chemical, Fuel, Structural and Thermal Properties. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E403. [PMID: 30696042 PMCID: PMC6384547 DOI: 10.3390/ma12030403] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/21/2019] [Accepted: 01/26/2019] [Indexed: 11/16/2022]
Abstract
The process parameters of microwave-induced hydrothermal carbonization (MIHTC) play an important role on the hydrothermal chars (hydrochar) yield. The effect of reaction temperature, reaction time, particle size and biomass to water ratio was optimized for hydrochar yield by modeling using the central composite design (CCD). Further, the rice straw and hydrochar at optimum conditions have been characterized for energy, chemical, structural and thermal properties. The optimum condition for hydrochar synthesis was found to be at a 180 °C reaction temperature, a 20 min reaction time, a 1:15 weight per volume (w/v) biomass to water ratio and a 3 mm particle size, yielding 57.9% of hydrochar. The higher heating value (HHV), carbon content and fixed carbon values increased from 12.3 MJ/kg, 37.19% and 14.37% for rice straw to 17.6 MJ/kg, 48.8% and 35.4% for hydrochar. The porosity, crystallinity and thermal stability of the hydrochar were improved remarkably compared to rice straw after MIHTC. Two characteristic peaks from XRD were observed at 2θ of 15° and 26°, whereas DTG peaks were observed at 50⁻150 °C and 300⁻350 °C for both the materials. Based on the results, it can be suggested that the hydrochar could be potentially used for adsorption, carbon sequestration, energy and agriculture applications.
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Affiliation(s)
| | - Sundus Saeed Qureshi
- Institute of Environmental Engineering and Management, Mehran University of Engineering and Technology, Jamshoro 76090, Sindh, Pakistan.
| | | | | | - Pooja Takkalkar
- School of Engineering, RMIT University, Melbourne 3000, Australia.
| | - Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009 Sarawak, Malaysia.
| | - Deepa K Dumbre
- School of Engineering, RMIT University, Melbourne 3000, Australia.
| | | | | | - Akshat Tanksale
- Department of Chemical Engineering, Monash University, Clayton 3800, Australia.
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